Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:
 "Highlights:

   - Gustavo A. R. Silva keeps working on the implicit switch fallthru
     changes.

   - Support 802.11ax High-Efficiency wireless in cfg80211 et al, From
     Luca Coelho.

   - Re-enable ASPM in r8169, from Kai-Heng Feng.

   - Add virtual XFRM interfaces, which avoids all of the limitations of
     existing IPSEC tunnels. From Steffen Klassert.

   - Convert GRO over to use a hash table, so that when we have many
     flows active we don't traverse a long list during accumluation.

   - Many new self tests for routing, TC, tunnels, etc. Too many
     contributors to mention them all, but I'm really happy to keep
     seeing this stuff.

   - Hardware timestamping support for dpaa_eth/fsl-fman from Yangbo Lu.

   - Lots of cleanups and fixes in L2TP code from Guillaume Nault.

   - Add IPSEC offload support to netdevsim, from Shannon Nelson.

   - Add support for slotting with non-uniform distribution to netem
     packet scheduler, from Yousuk Seung.

   - Add UDP GSO support to mlx5e, from Boris Pismenny.

   - Support offloading of Team LAG in NFP, from John Hurley.

   - Allow to configure TX queue selection based upon RX queue, from
     Amritha Nambiar.

   - Support ethtool ring size configuration in aquantia, from Anton
     Mikaev.

   - Support DSCP and flowlabel per-transport in SCTP, from Xin Long.

   - Support list based batching and stack traversal of SKBs, this is
     very exciting work. From Edward Cree.

   - Busyloop optimizations in vhost_net, from Toshiaki Makita.

   - Introduce the ETF qdisc, which allows time based transmissions. IGB
     can offload this in hardware. From Vinicius Costa Gomes.

   - Add parameter support to devlink, from Moshe Shemesh.

   - Several multiplication and division optimizations for BPF JIT in
     nfp driver, from Jiong Wang.

   - Lots of prepatory work to make more of the packet scheduler layer
     lockless, when possible, from Vlad Buslov.

   - Add ACK filter and NAT awareness to sch_cake packet scheduler, from
     Toke Høiland-Jørgensen.

   - Support regions and region snapshots in devlink, from Alex Vesker.

   - Allow to attach XDP programs to both HW and SW at the same time on
     a given device, with initial support in nfp. From Jakub Kicinski.

   - Add TLS RX offload and support in mlx5, from Ilya Lesokhin.

   - Use PHYLIB in r8169 driver, from Heiner Kallweit.

   - All sorts of changes to support Spectrum 2 in mlxsw driver, from
     Ido Schimmel.

   - PTP support in mv88e6xxx DSA driver, from Andrew Lunn.

   - Make TCP_USER_TIMEOUT socket option more accurate, from Jon
     Maxwell.

   - Support for templates in packet scheduler classifier, from Jiri
     Pirko.

   - IPV6 support in RDS, from Ka-Cheong Poon.

   - Native tproxy support in nf_tables, from Máté Eckl.

   - Maintain IP fragment queue in an rbtree, but optimize properly for
     in-order frags. From Peter Oskolkov.

   - Improvde handling of ACKs on hole repairs, from Yuchung Cheng"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1996 commits)
  bpf: test: fix spelling mistake "REUSEEPORT" -> "REUSEPORT"
  hv/netvsc: Fix NULL dereference at single queue mode fallback
  net: filter: mark expected switch fall-through
  xen-netfront: fix warn message as irq device name has '/'
  cxgb4: Add new T5 PCI device ids 0x50af and 0x50b0
  net: dsa: mv88e6xxx: missing unlock on error path
  rds: fix building with IPV6=m
  inet/connection_sock: prefer _THIS_IP_ to current_text_addr
  net: dsa: mv88e6xxx: bitwise vs logical bug
  net: sock_diag: Fix spectre v1 gadget in __sock_diag_cmd()
  ieee802154: hwsim: using right kind of iteration
  net: hns3: Add vlan filter setting by ethtool command -K
  net: hns3: Set tx ring' tc info when netdev is up
  net: hns3: Remove tx ring BD len register in hns3_enet
  net: hns3: Fix desc num set to default when setting channel
  net: hns3: Fix for phy link issue when using marvell phy driver
  net: hns3: Fix for information of phydev lost problem when down/up
  net: hns3: Fix for command format parsing error in hclge_is_all_function_id_zero
  net: hns3: Add support for serdes loopback selftest
  bnxt_en: take coredump_record structure off stack
  ...

1 files changed, 70 insertions, 16 deletions

diff --git a/include/net/tls.h b/include/net/tls.h
index 70c273777fe9..d5c683e8bb22 100644
--- a/include/net/tls.h
+++ b/include/net/tls.h
@@ -83,6 +83,16 @@ struct tls_device {
 	void (*unhash)(struct tls_device *device, struct sock *sk);
 };
 
+enum {
+	TLS_BASE,
+	TLS_SW,
+#ifdef CONFIG_TLS_DEVICE
+	TLS_HW,
+#endif
+	TLS_HW_RECORD,
+	TLS_NUM_CONFIG,
+};
+
 struct tls_sw_context_tx {
 	struct crypto_aead *aead_send;
 	struct crypto_wait async_wait;
@@ -114,10 +124,6 @@ struct tls_sw_context_rx {
 	struct sk_buff *recv_pkt;
 	u8 control;
 	bool decrypted;
-
-	char rx_aad_ciphertext[TLS_AAD_SPACE_SIZE];
-	char rx_aad_plaintext[TLS_AAD_SPACE_SIZE];
-
 };
 
 struct tls_record_info {
@@ -128,7 +134,7 @@ struct tls_record_info {
 	skb_frag_t frags[MAX_SKB_FRAGS];
 };
 
-struct tls_offload_context {
+struct tls_offload_context_tx {
 	struct crypto_aead *aead_send;
 	spinlock_t lock;	/* protects records list */
 	struct list_head records_list;
@@ -147,8 +153,8 @@ struct tls_offload_context {
 #define TLS_DRIVER_STATE_SIZE (max_t(size_t, 8, sizeof(void *)))
 };
 
-#define TLS_OFFLOAD_CONTEXT_SIZE                                               \
-	(ALIGN(sizeof(struct tls_offload_context), sizeof(void *)) +           \
+#define TLS_OFFLOAD_CONTEXT_SIZE_TX                                            \
+	(ALIGN(sizeof(struct tls_offload_context_tx), sizeof(void *)) +        \
 	 TLS_DRIVER_STATE_SIZE)
 
 enum {
@@ -197,6 +203,7 @@ struct tls_context {
 	int (*push_pending_record)(struct sock *sk, int flags);
 
 	void (*sk_write_space)(struct sock *sk);
+	void (*sk_destruct)(struct sock *sk);
 	void (*sk_proto_close)(struct sock *sk, long timeout);
 
 	int  (*setsockopt)(struct sock *sk, int level,
@@ -209,13 +216,27 @@ struct tls_context {
 	void (*unhash)(struct sock *sk);
 };
 
+struct tls_offload_context_rx {
+	/* sw must be the first member of tls_offload_context_rx */
+	struct tls_sw_context_rx sw;
+	atomic64_t resync_req;
+	u8 driver_state[];
+	/* The TLS layer reserves room for driver specific state
+	 * Currently the belief is that there is not enough
+	 * driver specific state to justify another layer of indirection
+	 */
+};
+
+#define TLS_OFFLOAD_CONTEXT_SIZE_RX					\
+	(ALIGN(sizeof(struct tls_offload_context_rx), sizeof(void *)) + \
+	 TLS_DRIVER_STATE_SIZE)
+
 int wait_on_pending_writer(struct sock *sk, long *timeo);
 int tls_sk_query(struct sock *sk, int optname, char __user *optval,
 		int __user *optlen);
 int tls_sk_attach(struct sock *sk, int optname, char __user *optval,
 		  unsigned int optlen);
 
-
 int tls_set_sw_offload(struct sock *sk, struct tls_context *ctx, int tx);
 int tls_sw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size);
 int tls_sw_sendpage(struct sock *sk, struct page *page,
@@ -223,6 +244,7 @@ int tls_sw_sendpage(struct sock *sk, struct page *page,
 void tls_sw_close(struct sock *sk, long timeout);
 void tls_sw_free_resources_tx(struct sock *sk);
 void tls_sw_free_resources_rx(struct sock *sk);
+void tls_sw_release_resources_rx(struct sock *sk);
 int tls_sw_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
 		   int nonblock, int flags, int *addr_len);
 unsigned int tls_sw_poll(struct file *file, struct socket *sock,
@@ -239,7 +261,7 @@ void tls_device_sk_destruct(struct sock *sk);
 void tls_device_init(void);
 void tls_device_cleanup(void);
 
-struct tls_record_info *tls_get_record(struct tls_offload_context *context,
+struct tls_record_info *tls_get_record(struct tls_offload_context_tx *context,
 				       u32 seq, u64 *p_record_sn);
 
 static inline bool tls_record_is_start_marker(struct tls_record_info *rec)
@@ -289,11 +311,19 @@ static inline bool tls_is_pending_open_record(struct tls_context *tls_ctx)
 	return tls_ctx->pending_open_record_frags;
 }
 
+struct sk_buff *
+tls_validate_xmit_skb(struct sock *sk, struct net_device *dev,
+		      struct sk_buff *skb);
+
 static inline bool tls_is_sk_tx_device_offloaded(struct sock *sk)
 {
-	return sk_fullsock(sk) &&
-	       /* matches smp_store_release in tls_set_device_offload */
-	       smp_load_acquire(&sk->sk_destruct) == &tls_device_sk_destruct;
+#ifdef CONFIG_SOCK_VALIDATE_XMIT
+	return sk_fullsock(sk) &
+	       (smp_load_acquire(&sk->sk_validate_xmit_skb) ==
+	       &tls_validate_xmit_skb);
+#else
+	return false;
+#endif
 }
 
 static inline void tls_err_abort(struct sock *sk, int err)
@@ -380,23 +410,47 @@ static inline struct tls_sw_context_tx *tls_sw_ctx_tx(
 	return (struct tls_sw_context_tx *)tls_ctx->priv_ctx_tx;
 }
 
-static inline struct tls_offload_context *tls_offload_ctx(
-		const struct tls_context *tls_ctx)
+static inline struct tls_offload_context_tx *
+tls_offload_ctx_tx(const struct tls_context *tls_ctx)
+{
+	return (struct tls_offload_context_tx *)tls_ctx->priv_ctx_tx;
+}
+
+static inline struct tls_offload_context_rx *
+tls_offload_ctx_rx(const struct tls_context *tls_ctx)
 {
-	return (struct tls_offload_context *)tls_ctx->priv_ctx_tx;
+	return (struct tls_offload_context_rx *)tls_ctx->priv_ctx_rx;
 }
 
+/* The TLS context is valid until sk_destruct is called */
+static inline void tls_offload_rx_resync_request(struct sock *sk, __be32 seq)
+{
+	struct tls_context *tls_ctx = tls_get_ctx(sk);
+	struct tls_offload_context_rx *rx_ctx = tls_offload_ctx_rx(tls_ctx);
+
+	atomic64_set(&rx_ctx->resync_req, ((((uint64_t)seq) << 32) | 1));
+}
+
+
 int tls_proccess_cmsg(struct sock *sk, struct msghdr *msg,
 		      unsigned char *record_type);
 void tls_register_device(struct tls_device *device);
 void tls_unregister_device(struct tls_device *device);
+int tls_device_decrypted(struct sock *sk, struct sk_buff *skb);
+int decrypt_skb(struct sock *sk, struct sk_buff *skb,
+		struct scatterlist *sgout);
 
 struct sk_buff *tls_validate_xmit_skb(struct sock *sk,
 				      struct net_device *dev,
 				      struct sk_buff *skb);
 
 int tls_sw_fallback_init(struct sock *sk,
-			 struct tls_offload_context *offload_ctx,
+			 struct tls_offload_context_tx *offload_ctx,
 			 struct tls_crypto_info *crypto_info);
 
+int tls_set_device_offload_rx(struct sock *sk, struct tls_context *ctx);
+
+void tls_device_offload_cleanup_rx(struct sock *sk);
+void handle_device_resync(struct sock *sk, u32 seq, u64 rcd_sn);
+
 #endif /* _TLS_OFFLOAD_H */